i cannot help with all this but 16 would be 33 ft 
 
        
             
        
        
        
 <span>3 is 1.0 below the mean. That is 1.0 / 0.9, or 1.1111... standard deviations below the mean. 
So look up z < -1.11 on your graphing calculator.
It should be around 0.1335 or 13.35%</span>
        
             
        
        
        
Answer:

Step-by-step explanation:
As it is given as ΔQRP and ΔARC are similar, so the ratio of their corresponding sides will be same.
So,

It is given as,
RC  = 3.3
PR = 1.8
AC = 6.6
PQ = ??
Putting the values,

